Folding knife



FIG. 1 is a top plan view of a folding knife showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a perspective view thereof; and,

FIG 8 is perspective view thereof showing the folding knife of my newdesign having the blade thereof in an extended position.

The ornamental design for a folding knife, as shown and described.